Molecular mechanism of the ectodomain shedding of the NKG2D ligand MHC class I-related chain A in hepatocellular carcinoma and its therapeutic implication
Project/Area Number |
20390208
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Gastroenterology
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Research Institution | Osaka University |
Principal Investigator |
TAKEHARA Tetsuo Osaka University, 院医学系研究科, 教授 (70335355)
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Co-Investigator(Kenkyū-buntansha) |
TATSUMI Tomohide 大阪大学, 医学系研究科, 助教 (20397699)
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Project Period (FY) |
2008 – 2010
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Project Status |
Completed (Fiscal Year 2010)
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Budget Amount *help |
¥18,200,000 (Direct Cost: ¥14,000,000、Indirect Cost: ¥4,200,000)
Fiscal Year 2010: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2009: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2008: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
|
Keywords | 肝臓 / 癌 / 免疫 / NK細胞 / MICA / NKG2D / ADAM / ソラフェニブ / IL-1 / 炎症 / 肝癌 / C型肝炎 / MIC / sorafenib / 免疫治療 / 抗癌剤 / shedding |
Research Abstract |
MHC class I-related chain A (MICA), a ligand for the NKG2D activating receptor NKG2D, is expressed in hepatocellular carcinoma (HCC) and determines its sensitivity to NK cells. In the present study, we have shown that 1) the serum levels of soluble form of MICA increase in chronic liver disease and HCC as disease progresses, 2) ADAM9 and ADAM 10 are critically involved in shedding of MICA from HCC and 4) anti-tumor agents including sorafenib and epirubicin inhibit expression of ADA9 and ADAM 10, respectively, and shedding of MICA in HCC. These results indicate that ADAM family proteins are involved in ectodomain shedding of MICA from HCC and could be novel therapeutic targets for improving anti-tumor immune responses.
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Report
(4 results)
Research Products
(52 results)
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[Journal Article] Absence of invariant natural killer T cells deteriorates liver inflammation and fibrosis in mice fed high-fat diet.2010
Author(s)
Miyagi T, Takehara T, Uemura A, Nishio K, Shimizu S, Kodama T, Hikita H, Li W, Sasakawa A, Tatsumi T, Ohkawa K, Kanto T, Hiramatsu N, Hayashi N.
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Journal Title
J Gastroenterol 45
Pages: 1247-1254
NAID
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Peer Reviewed
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[Journal Article] EphA2-derived peptide vaccine with amphiphilic poly (γ-glutamic acid) nanoparticles elicits an antitumor effect against mouse liver tumor.2010
Author(s)
Yamaguchi S, Tatsumi T, Takehara T, Sasakawa A, Yamamoto M, Kohga K, Miyagi T, Kanto T, Hiramatsu N, Akagi T, Akashi M, Hayashi N.
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Journal Title
Cancer Immunol Immunother 59
Pages: 759-767
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Peer Reviewed
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[Journal Article] Serum levels of soluble MHC class I-related chain A in patients with chronic liver diseases and the changes during transcatheter arterial embolization for hepatocellular carcinoma.2008
Author(s)
Kohga K, Takehara T, Tatsumi T, Ohkawa K, Miyagi T, Hiramatsu N, Kanto T, Kasugai T, Katayama K, Kato M, Hayashi N.
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Journal Title
Cancer Sci 99
Pages: 1643-1649
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Peer Reviewed
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[Journal Article] Fibroblast growth factor-2 enhances NK sensitivity of hepatocellular carcinoma cells.
Author(s)
Tsunematsu H, Tatsumi T, Kohga K, Yamamoto M, Aketa H, Miyagi T, Hosui A, Hiramatsu N, Kanto T, Hayashi N, Takehara T.
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Peer Reviewed
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[Presentation] 「非アルコール性脂肪性肝炎病態形成におけるNKT細胞の関与」「肝細胞癌におけるNK活性化レセプターリガンドMICA分泌(shedding)の分子機構」「α-PGAナノ粒子を用いた癌免疫療法の基礎的検討」「肝細胞特異的STAT5欠損マウスにおける肝線維化・発がんの分子機構」2009
Author(s)
宮城琢也, 竹原徹郎, 他, 甲賀啓介, 竹原徹郎, 他, 山口真二郎, 竹原徹郎, 他, 法水淳, 竹原徹郎, 他
Organizer
第45回日本肝臓学会総会
Place of Presentation
神戸ポートピアホテル、神戸国際展示場
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[Presentation] 「EFFICACY OF THE IMMUNOTHERAPY WITH POLYγ-GLUTAMIC ACID NANOPARTICLES IN MOUSE LIVER TUMOR」「EXPRESSION OF NKG2D ACTIVATING RECEPTOR ON NATURAL KILLER CELLS IN CHRONIC HEPATITIS C」「ACTIVATED LIVER DENDRITIC CELLS ARE MORE IMMUNOGENIC THAN SPLEEN DENDRITIC CELLS AFTER α-GALCER TREATMENT」「SN38 INHIBITS SHEDDING OF MHC CLASS1-RELATED CHAIN A, A LIGAND OF NKG2D IMMUNORECEPTOR IN HUMAN HEPATOCELLULAR CARCINOMA CELLS」2008
Author(s)
Yamaguchi S, Takehara T, et al., Shimizu S, Takehara T, et al., Sasakawa A, Takehara T, et al., Kohga K, Takehara T, et al.
Organizer
The Liver Meeting 2008
Place of Presentation
San Francisco, Moscone West Convention Center
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[Presentation] 「SN38は肝癌細胞の可溶型NK活性リガンドの分泌を抑制しNK細胞感受性を増強させる」「IL-12遺伝子による肝臓NK細胞の活性化および転移性肝腫瘍の治療効果にはリンパ球からのIFN・の産生が重要である」「皮下腫瘍担癌マウスにおける肝樹状細胞上CD1d分子発現低下による肝先天免疫の抑制」「肝先天免疫活性化による肝樹状細胞活性化機構の解析」「ウイルス感染モデルを用いたインターフェロンの免疫細胞内におけるシグナル伝達機構の制御メカニズムに関する基礎的検討」2008
Author(s)
甲賀啓介, 竹原徹郎, 他, 植村彰夫, 竹原徹郎, 他, 巽智秀, 竹原徹郎, 他, 笹川哲, 竹原徹郎, 他, 宮城琢也, 竹原徹郎, 他
Organizer
第44回日本肝臓学会総会
Place of Presentation
愛媛県県民文化会館、愛媛看護研修センター(松山)(ワークショップ3肝の発癌と進展における分子代謝学的研究)
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